2011-2012某市农村饮用水水质动态分析

发布时间：2018-06-25 10:29

本文选题：农村 + 生活饮用水　；参考：《现代预防医学》2015年04期

【摘要】：目的了解某市年度间农村饮水水质状况及变化动态,为政府采取有针对性措施提供依据。方法 2011、2012年分别于枯水期(3-4月)和丰水期(7-8月),对辖区内农村集中供水设施和分散式饮水点调查抽样。依据《生活饮用水标准检验方法》(GB/T 5750-2006)对监测点进行水质检测。结果 2011年采集水样1 016份,合格率63.4%。2012年采集水样1 060份,合格率59.4%,2年间差异无统计学意义(χ2=2.51,P0.05),2年间共检测集中式供水2 040份,合格率61.8%,分散式供水36份,合格率38.9%,差异有统计学意义(χ2=7.83,P0.01)。枯水期共采集水样1 038份,合格率66.0%,丰水期1 038份,合格率56.7%,枯水期水质优于丰水期,差异有统计学意义(χ2=18.93,P0.01)。结论某市农村饮水多为地下水,水质年度间变化不明显,但水质受水期、供水方式、水源类型的影响。2011-2012年不合格率指标主要为大肠菌群、菌落总数、耐热大肠菌群、总硬度、硝酸盐等,卫生行政部门应根据当地水质特点有针对性的开展水质监测。
[Abstract]:Objective to understand the situation and changes of drinking water quality in rural areas in a certain city during the year, and to provide evidence for the government to take targeted measures. Methods in the dry season (March-April) and the high-water period (July-August), the centralized water supply facilities in rural areas and the scattered drinking water points were sampled in 2011 and 2012 respectively. According to the Standard Inspection method of domestic drinking Water (GBP / T 5750-2006), the water quality of monitoring sites was tested. Results 1016 water samples were collected in 2011, the qualified rate was 63.4.1060 water samples were collected in 2012, and the qualified rate was 59.4. There was no significant difference between two years (蠂 2, 2.51, P 0.05). A total of 2040 water samples were collected in two years, the qualified rate was 61.8 and 36 were distributed water supply. The qualified rate was 38.9, the difference was statistically significant (蠂 ~ 2 = 7.83, P 0.01). A total of 1,038 samples were collected in the dry season, the qualified rate was 66.0%, and the qualified rate was 56.7% in the high water period. The water quality in the dry season was better than that in the high water period (蠂 2 + 18.93% P 0.01). Conclusion the drinking water in rural areas of a certain city is mostly groundwater, and the water quality does not change obviously every year. However, the influence of water quality, water supply mode and water source type in 2011-2012 is mainly about coliform bacteria, total bacteria count, heat resistant coliform bacteria, total hardness. The health administration department should carry out water quality monitoring according to local water quality characteristics.
【作者单位】：河北省石家庄市疾病预防控制中心;
【分类号】：R123.9

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